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Here are the most common examples of these four patterns on a chest x-ray (click image
on a chest x-ray ... - Reticular interstitial ... opacities - Fine Nodular ... Nodule or mass ... Nodule - Multiple
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... : reticular, nodular ... On a Chest X-Ray ... detected on a chest ... #Diagnosis #Radiology
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... Kerley B lines on chest ... Nodular or irregular ... #Diagnosis #Radiology ... #CTChest #Reticular
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Low Attenuation Nodular ... Differential #Diagnosis ... #pulmonary #radiology
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
in HIV - Differential ... , erythematous nodules ... consolidation or nodular ... Imaging: Irregular nodules ... nodules possible
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
nodules and masses ... Pleuritic chest ... + Nodular opacities ... opacities on chest ... #diagnosis #management
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
nodules, asthma ... vasculitis, ulcers, nodules ... Other tests: • CT chest ... hematuria, RBC casts ... diagnosis #management